WO2019194063A1 - Dispositif et procédé de ventilation pour climatiseur - Google Patents

Dispositif et procédé de ventilation pour climatiseur Download PDF

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Publication number
WO2019194063A1
WO2019194063A1 PCT/JP2019/013553 JP2019013553W WO2019194063A1 WO 2019194063 A1 WO2019194063 A1 WO 2019194063A1 JP 2019013553 W JP2019013553 W JP 2019013553W WO 2019194063 A1 WO2019194063 A1 WO 2019194063A1
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WO
WIPO (PCT)
Prior art keywords
air
heat exchanger
outdoor heat
indoor
outdoor
Prior art date
Application number
PCT/JP2019/013553
Other languages
English (en)
Japanese (ja)
Inventor
今泉　賢
智史 上田
Original Assignee
三菱電機株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 三菱電機株式会社 filed Critical 三菱電機株式会社
Priority to JP2020512197A priority Critical patent/JPWO2019194063A1/ja
Priority to US16/970,797 priority patent/US20210108805A1/en
Priority to CN201980020937.6A priority patent/CN111886452A/zh
Priority to CA3092915A priority patent/CA3092915A1/fr
Publication of WO2019194063A1 publication Critical patent/WO2019194063A1/fr

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
    • F24F1/0007—Indoor units, e.g. fan coil units
    • F24F1/0041—Indoor units, e.g. fan coil units characterised by exhaustion of inside air from the room
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
    • F24F1/02—Self-contained room units for air-conditioning, i.e. with all apparatus for treatment installed in a common casing
    • F24F1/022—Self-contained room units for air-conditioning, i.e. with all apparatus for treatment installed in a common casing comprising a compressor cycle
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
    • F24F1/02—Self-contained room units for air-conditioning, i.e. with all apparatus for treatment installed in a common casing
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
    • F24F1/02—Self-contained room units for air-conditioning, i.e. with all apparatus for treatment installed in a common casing
    • F24F1/028—Self-contained room units for air-conditioning, i.e. with all apparatus for treatment installed in a common casing characterised by air supply means, e.g. fan casings, internal dampers or ducts
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
    • F24F11/41—Defrosting; Preventing freezing
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/20—Casings or covers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F2110/00—Control inputs relating to air properties
    • F24F2110/20—Humidity

Definitions

  • the present invention relates to an air conditioning ventilation apparatus and an air conditioning ventilation method.
  • an air-conditioning ventilator having a function of ventilating an air-conditioned room and a function of air-conditioning the air-conditioned room using a refrigeration cycle.
  • An outdoor blower is used for ventilation of the air-conditioned room.
  • the outdoor blower serves both to promote heat exchange of the outdoor heat exchanger constituting the refrigeration cycle and to discharge air in the air-conditioned room to the outside of the air-conditioned room.
  • the above air-conditioning ventilator does not have a function of air-conditioning the air-conditioned room in parallel with the ventilation of the air-conditioned room.
  • ventilation of the air-conditioned room may deteriorate the temperature environment of the air-conditioned room. For this reason, the function to air-condition an air-conditioned room is desired, ventilating an air-conditioned room.
  • the air-conditioned room is configured from the state in which the air flow path of the air flowing through each of the indoor heat exchanger and the outdoor heat exchanger constituting the refrigeration cycle is formed. It is necessary to switch to a state that constitutes an air flow path for exhausting the air to the outside. In order to realize this switching, the air conditioning ventilator requires a complicated configuration.
  • An object of the present invention is to provide an air-conditioning ventilation apparatus and an air-conditioning ventilation method that can perform air conditioning of an air-conditioned room and ventilation of the air-conditioned room in parallel without requiring a complicated configuration.
  • one of the indoor heat exchanger and the outdoor heat exchanger functions as an evaporator that evaporates the refrigerant, and the other functions as a condenser that condenses the refrigerant.
  • the cooperating device group configures a refrigeration cycle in which the refrigerant circulates together with an indoor heat exchanger and an outdoor heat exchanger.
  • the indoor heat exchanger is disposed in the indoor heat exchanger ventilation path defined by the indoor heat exchanger ventilation path defining member.
  • the indoor heat exchanger ventilation path demarcating member is formed with an indoor heat exchanger inlet and an indoor heat exchanger exhaust leading to the air-conditioned room that is the target of air conditioning.
  • the indoor heat exchanger ventilation path allows the indoor heat exchanger air inlet and the indoor heat exchanger air outlet to communicate with each other.
  • the indoor blower is placed in the ventilation path for the indoor heat exchanger.
  • the indoor air which is the air in the air-conditioned room, is sucked in from the intake port for the indoor heat exchanger, and the sucked indoor air passes through the indoor heat exchanger and is discharged from the exhaust port for the indoor heat exchanger.
  • the air flow discharged to the indoor heat exchanger is formed in the ventilation path for the indoor heat exchanger.
  • the outdoor heat exchanger is disposed in the outdoor heat exchanger ventilation path defined by the outdoor heat exchanger ventilation path defining member.
  • the outdoor heat exchanger ventilation path defining member includes a first outdoor heat exchanger inlet and an outdoor heat exchanger exhaust leading to an external space isolated from the air-conditioned room, and an outdoor heat exchanger first leading to the air-conditioned room. Two intake ports are formed.
  • the outdoor heat exchanger ventilation path allows the first outdoor heat exchanger inlet and the second outdoor heat exchanger inlet to communicate with the outdoor heat exchanger exhaust.
  • the outdoor fan is placed in the ventilation path for the outdoor heat exchanger.
  • the outside air which is the air in the external space
  • the indoor air in the air-conditioned room is sucked in from the second intake port for the outdoor heat exchanger, and the sucked external air
  • at least external air out of the indoor air passes through the outdoor heat exchanger, and an air flow in which the external air and the indoor air are discharged from the outdoor heat exchanger exhaust port to the external space is formed in the outdoor heat exchanger ventilation path.
  • the room air in parallel with the adjustment of the temperature of the room air by passing the room air through the room heat exchanger, the room air is discharged from the second outdoor heat exchanger inlet to the external space. Done. For this reason, air conditioning of the air-conditioned room and ventilation of the air-conditioned room can be performed in parallel.
  • ventilation of the air-conditioned room is realized by forming the second intake port for the outdoor heat exchanger in the outdoor heat exchanger ventilation path defining member, so that a complicated configuration is not required.
  • FIG. 1 The conceptual diagram which shows the structure of the air_conditioning
  • FIG. 1 The conceptual diagram which shows the structure of the heating operation state of the air-conditioning ventilator which concerns on Embodiment 1.
  • FIG. 1 The conceptual diagram which shows the structure of the air_conditioning
  • FIG. 1 which shows the structure of the air_conditioning
  • FIG. 5 The conceptual diagram which shows the structure of the air_conditioning
  • FIG. 6 The conceptual diagram which shows the structure of the air_conditioning
  • FIG. 7 The conceptual diagram which shows the structure of the air_conditioning
  • FIG. 8 The conceptual diagram which shows the structure of the air_conditioning
  • Embodiment 1-8 the air-conditioning ventilator according to Embodiment 1-8 will be described with reference to the drawings.
  • the same or corresponding parts are denoted by the same reference numerals.
  • an air-conditioning ventilator 100 includes an air-conditioning device 80 that air-conditions an air-conditioned room RA that is an air-conditioning target.
  • the air conditioner 80 includes an indoor heat exchanger 10 and an outdoor heat exchanger 20, one of which functions as an evaporator that evaporates the refrigerant and the other that functions as a condenser that condenses the refrigerant, and a refrigeration cycle in which the refrigerant circulates.
  • a cooperating device group 30 configured together with the heat exchanger 10 and the outdoor heat exchanger 20.
  • the cooperating device group 30 connects the compressor 31 that compresses the refrigerant, the expander 32 that expands the refrigerant, and the indoor heat exchanger 10, the outdoor heat exchanger 20, the compressor 31, and the expander 32 described above. And a refrigerant pipe 33 that constitutes a closed circuit and through which the refrigerant flows.
  • the inflator 32 is constituted by a capillary tube.
  • the collaborative device group 30 also includes a four-way valve 34 that switches the refrigerant flow in the refrigeration cycle that the air conditioner 80 constitutes. By switching the refrigerant flow using the four-way valve 34, it is possible to switch between a cooling operation state in which the air conditioner 80 cools the air-conditioned room RA and a heating operation state in which the air conditioner 80 heats the air-conditioned room RA.
  • FIG. 1 illustrates an air conditioner 80 in a cooling operation state.
  • the air conditioner 80 is isolated from the air-conditioned room RA by the indoor blower 40 that promotes heat exchange between the indoor air that is air of the air-conditioned room RA and the indoor heat exchanger 10, and the wall WL of the building. It has the outdoor air blower 50 which accelerates
  • the air conditioner 80 is supplied to the compressor 31, the indoor blower 40, and the outdoor blower 50, and the power supply circuit 60 supplies power to the compressor 31, the indoor blower 40, and the outdoor blower 50.
  • a control device 70 for controlling the switching of the four-way valve 34.
  • Each of the power supply circuit 60 and the control device 70 is configured by being mounted on a circuit board.
  • the air-conditioning ventilator 100 includes a housing 90 that houses the air-conditioning equipment 80 described above.
  • the housing 90 includes an indoor heat exchanger ventilation path defining member 91 that defines an indoor heat exchanger ventilation path S1 in which the indoor heat exchanger 10 and the indoor blower 40 are disposed, and the outdoor heat exchanger 20 and the outdoor blower 50.
  • an outdoor heat exchanger ventilation path defining member 92 defining an outdoor heat exchanger ventilation path S2.
  • the indoor heat exchanger ventilation path demarcating member 91 is formed with an indoor heat exchanger intake port 91a and an indoor heat exchanger exhaust port 91b that respectively communicate with the air-conditioned room RA.
  • the indoor heat exchanger ventilation passage S1 communicates the indoor heat exchanger intake port 91a with the indoor heat exchanger exhaust port 91b.
  • the indoor blower 40 forms an air flow of room air from the indoor heat exchanger intake port 91a to the indoor heat exchanger exhaust port 91b in the indoor heat exchanger ventilation path S1.
  • the outdoor heat exchanger ventilation path defining member 92 is formed with a first outdoor heat exchanger inlet 92a and an outdoor heat exchanger exhaust 92b that communicate with the external space RB.
  • the first outdoor heat exchanger inlet 92a communicates with the external space RB via the external air intake duct D1
  • the outdoor heat exchanger exhaust 92b communicates with the external space RB via the exhaust duct D2.
  • the outdoor heat exchanger ventilation path defining member 92 is also formed with a second intake port 92c for the outdoor heat exchanger that communicates with the air-conditioned room RA.
  • the second air inlet 92c for the outdoor heat exchanger faces the inside of the air-conditioned room RA.
  • the outdoor heat exchanger second intake port 92c is an outer surface of the housing 90 that faces the interior of the air-conditioned room RA, and the outer surface of the indoor heat exchanger exhaust port 91b that is open. Is open on the outer surface extending in the intersecting direction.
  • the outdoor heat exchanger ventilation path S2 allows the first outdoor heat exchanger inlet 92a and the second outdoor heat exchanger inlet 92c to communicate with the outdoor heat exchanger exhaust 92b.
  • the outdoor blower 50 forms an airflow of external air from the outdoor heat exchanger first intake port 92a to the outdoor heat exchanger exhaust port 92b in the outdoor heat exchanger ventilation path S2.
  • the atmospheric pressure in the region facing the outdoor heat exchanger second intake port 92c inside the outdoor heat exchanger ventilation path S2 is higher than the atmospheric pressure of the air-conditioned room RA. Lower. For this reason, the indoor air of the air-conditioned room RA is naturally sucked into the outdoor heat exchanger ventilation path S2 from the outdoor heat exchanger second intake port 92c and exhausted together with the external air from the outdoor heat exchanger exhaust port 92b to the external space RB. Is done.
  • the 2nd inlet port 92c for outdoor heat exchangers is arrange
  • the housing 90 includes a machine housing part defining member 93 that defines a machine housing part S3 in which the compressor 31, the expander 32, the refrigerant pipe 33, and the four-way valve 34 are housed, the power supply circuit 60, and the control device 70. And a circuit board housing portion defining member 94 for defining the circuit board housing portion S4 to be housed.
  • the machine housing section S3 and the circuit board housing section S4 are configured between the indoor heat exchanger ventilation path S1 and the outdoor heat exchanger ventilation path S2. That is, the indoor heat exchanger ventilation path defining member 91 and the outdoor heat exchanger ventilation path defining member 92 are separated from each other by the machine housing section defining member 93 and the circuit board housing section defining member 94.
  • the refrigerant compressed by the compressor 31 is supplied to the outdoor heat exchanger 20 as a condenser.
  • the refrigerant condensed in the outdoor heat exchanger 20 is expanded in the expander 32, evaporated in the indoor heat exchanger 10 as an evaporator, and returned to the compressor 31 again.
  • the indoor heat exchanger 10 is cooled and the outdoor heat exchanger 20 is in a heated state.
  • the indoor blower 40 forms an air flow of indoor air passing through the indoor heat exchanger 10 in the indoor heat exchanger ventilation path S1. Specifically, indoor air is sucked into the indoor heat exchanger ventilation passage S1 from the indoor heat exchanger intake port 91a, and the sucked indoor air passes through the indoor heat exchanger 10 to be used for the indoor heat exchanger. An airflow discharged from the exhaust port 91b to the air-conditioned room RA is formed.
  • the indoor air is cooled by the indoor heat exchanger 10 by exchanging heat with the indoor heat exchanger 10. That is, cooling of the air-conditioned room RA is realized.
  • the outdoor blower 50 forms an air flow of external air and indoor air passing through the outdoor heat exchanger 20 in the outdoor heat exchanger ventilation passage S2 in a state where the above-described refrigeration cycle is configured. Specifically, outside air is sucked into the outdoor heat exchanger ventilation path S2 from the first outdoor air heat exchanger inlet 92a, and indoor air in the air-conditioned room RA passes through the outdoor heat exchanger second air inlet 92c. The sucked external air and the indoor air both pass through the outdoor heat exchanger 20 and form an air flow that is discharged from the outdoor heat exchanger exhaust port 92b to the external space RB.
  • exhaust heat from the outdoor heat exchanger 20 is realized by heat exchange between the external air and the indoor air with the outdoor heat exchanger 20.
  • the room air can be cooler than the outside air by absorbing heat by the indoor heat exchanger 10. For this reason, exhaust air can be efficiently exhausted by passing not only outside air but also room air through the outdoor heat exchanger 20 as compared with the case where only outside air is passed through the outdoor heat exchanger 20.
  • the indoor air is exhausted from the air-conditioned room RA to the external space RB through the second outdoor heat exchanger inlet 92c, the outdoor heat exchanger ventilation path S2, and the exhaust duct D2.
  • Air other than air is newly supplied to the air-conditioned room RA.
  • ventilation of air-conditioned room RA is realized.
  • the air newly supplied to the air-conditioned room RA may be fresh external air or air in a living space other than the air-conditioned room RA. .
  • the refrigerant compressed by the compressor 31 is supplied to the indoor heat exchanger 10 as a condenser.
  • the refrigerant condensed in the indoor heat exchanger 10 is expanded in the expander 32, evaporated in the outdoor heat exchanger 20 as an evaporator, and returned to the compressor 31 again.
  • the indoor heat exchanger 10 generates heat and the outdoor heat exchanger 20 is cooled.
  • the indoor blower 40 forms an air flow of indoor air passing through the indoor heat exchanger 10 in the indoor heat exchanger ventilation path S1.
  • the indoor air is heated by the indoor heat exchanger 10 by exchanging heat between the indoor air and the indoor heat exchanger 10. That is, heating of the air-conditioned room RA is realized.
  • the outdoor blower 50 forms an air flow of external air and indoor air passing through the outdoor heat exchanger 20 in the outdoor heat exchanger ventilation passage S2 in a state where the above-described refrigeration cycle is configured.
  • ventilation of the air-conditioned room RA is realized, and the outdoor heat exchanger 20 exchanges heat with the external air and the indoor air, thereby realizing the heat absorption of the outdoor heat exchanger 20 from the external air and the indoor air. Is done.
  • the indoor air can be warmer than the external air by being heated by the indoor heat exchanger 10. For this reason, by passing not only outside air but also room air through the outdoor heat exchanger 20, heat absorption can be performed more efficiently than when only outside air is passed through the outdoor heat exchanger 20. That is, the heat of the indoor air can be recovered by the outdoor heat exchanger 20.
  • the outdoor heat exchanger 20 not only the outside air but also the indoor air heated by the indoor heat exchanger 10 is passed through the outdoor heat exchanger 20, so that the outdoor heat exchanger 20 is prevented from being frosted. it can. Even if the outdoor heat exchanger 20 is frosted, the frost can be melted by the heated indoor air. For this reason, even if it is a case where the temperature of external air is low and humidity is high, it is prevented that the efficiency of the heat exchange of the outdoor heat exchanger 20 falls.
  • the temperature of the indoor air is adjusted by passing the indoor air through the indoor heat exchanger 10, and in parallel with the second intake port 92c for the outdoor heat exchanger.
  • the indoor air is discharged from the outside to the external space. For this reason, air conditioning of the air-conditioned room RA and ventilation of the air-conditioned room RA can be performed in parallel.
  • the ventilation of the air-conditioned room RA is realized by the outdoor heat exchanger second intake port 92c being formed in the outdoor heat exchanger ventilation path defining member 92, so that the function of ventilating the air-conditioned room RA is provided. To realize this, a complicated configuration is not required.
  • the second air inlet 92c for the outdoor heat exchanger is disposed upstream of the outdoor heat exchanger 20, not only the outside air but also the indoor air passes through the outdoor heat exchanger 20. For this reason, the efficiency of the heat exchange of the outdoor heat exchanger 20 can be improved compared with the case where only external air is passed through the outdoor heat exchanger 20. As a result, energy loss can be suppressed as compared with the case where the indoor air is exhausted without passing through the outdoor heat exchanger 20.
  • the indoor heat exchanger ventilation path defining member 91 and the outdoor heat exchanger ventilation path defining member 92 are separated by a machine housing section defining member 93 and a circuit board housing section defining member 94 interposed therebetween.
  • the second outdoor heat exchanger inlet 92c is located farther from the indoor heat exchanger exhaust 91b than the indoor heat exchanger inlet 91a. That is, the outdoor heat exchanger second intake port 92c faces the interior of the air-conditioned room RA at a position farther from the indoor heat exchanger exhaust port 91b than the indoor heat exchanger intake port 91a.
  • the indoor heat exchanger ventilation path defining member 91 and the outdoor heat exchanger ventilation path defining member 92 constitute a part of the common housing 90, the indoor heat exchanger ventilation path defining member 92 is connected to the indoor heat exchanger exhaust port 91b.
  • a short circuit in which the room air immediately after being discharged is not sufficiently circulated in the air-conditioned room RA and taken in from the second air inlet 92c for the outdoor heat exchanger is unlikely to occur.
  • intersects the outer surface which the exhaust port 91b for indoor heat exchangers has opened among the some outer surfaces which face the inside of air-conditioned room RA of the housing
  • the opening on the outer surface extending in the direction also contributes to the suppression of the short circuit described above.
  • a means for adjusting the amount of indoor air sucked into the outdoor heat exchanger ventilation passage S2 from the second outdoor heat exchanger inlet 92c may be added to the configuration of the first embodiment. Specific examples thereof will be described below.
  • the air-conditioning ventilator 200 further includes a damper 201 provided in the second intake port 92c for the outdoor heat exchanger.
  • the damper 201 has a configuration capable of adjusting the inflow amount of room air from the outdoor heat exchanger second intake port 92c to the outdoor heat exchanger ventilation path S2.
  • the damper 201 has a configuration in which the outdoor heat exchanger second intake port 92c can be fully closed or fully opened, and the opening degree can be adjusted.
  • the “opening degree” means the ratio of the area of the region that allows the passage of room air in the area of the opening of the second heat inlet 92c for the outdoor heat exchanger.
  • the damper 201 is controlled by the control device 70.
  • the control device 70 controls the opening degree of the damper 201 in accordance with the user's operation to specify the amount of ventilation per unit time.
  • the control device 70 Control to close. By fully closing the damper 201 and blocking the discharge of room air to the external space RB, the comfort of the air-conditioned room RA can be quickly increased.
  • the air-conditioning ventilator 200 includes an indoor temperature sensor 202 that detects the temperature of indoor air and an external temperature sensor 203 that detects the temperature of external air.
  • the indoor temperature sensor 202 is arranged at a position facing the indoor heat exchanger inlet 91a
  • the external temperature sensor 203 is arranged at a position facing the outdoor heat exchanger first inlet 92a.
  • the control device 70 also controls the damper 201 based on the detection results of the indoor temperature sensor 202 and the external temperature sensor 203.
  • control device 70 sets a difference threshold value that is set in advance as an allowable value of a temperature change in which the amount of change in the detection result of the indoor temperature sensor 202, specifically the indoor temperature difference, is maintained.
  • control which reduces the opening degree of the damper 201 is performed. Thereby, since the discharge
  • the control device 70 detects that the detection result of the external temperature sensor 203 falls below a lower limit threshold that is predetermined as a temperature at which frost may be generated. In this case, control for increasing the opening degree of the damper 201 is performed. Thereby, since the quantity of the warmed indoor air which passes the outdoor heat exchanger 20 increases, it can prevent that frost adheres to the outdoor heat exchanger 20 beforehand. Other effects are the same as those of the first embodiment.
  • the outdoor heat exchanger first intake port 92a and the outdoor heat exchanger second intake port 92c are arranged at different positions.
  • the outdoor heat exchanger first intake port 92a is provided with the outdoor heat exchanger 92a. It can also serve as the second air inlet 92c for the exchanger. Specific examples thereof will be described below.
  • the air-conditioning ventilator 300 is common to the first embodiment in that it includes an external air intake duct D1, but a through hole 301 is provided in the external air intake duct D1. Is different from that of the first embodiment.
  • the opening at one end of the external air intake duct D1 faces the external space RB.
  • the opening at the other end of the external air intake duct D1 is connected to the first outdoor air exchanger 92a.
  • the through hole 301 is formed in a portion facing the air-conditioned room RA between one end and the other end of the external air intake duct D1.
  • the outdoor blower 50 when the outdoor blower 50 is operating, external air is sucked from the opening at one end of the external air intake duct D1, and indoor air is sucked from the through hole 301.
  • external air and indoor air are introduced from the outdoor heat exchanger first intake port 92a into the outdoor heat exchanger ventilation path S2. Therefore, the 1st inlet 92a for outdoor heat exchangers serves as the 2nd inlet 92c for outdoor heat exchangers shown in FIG.
  • the through-hole 301 into which the room air is taken is formed in the external air intake duct D1
  • the through-hole 301 is formed more than the second intake port 92c for the outdoor heat exchanger shown in FIG. It is easy to arrange at a position far from the indoor heat exchanger exhaust port 91b. For this reason, compared with Embodiment 1, the short circuit of indoor air from the indoor heat exchanger exhaust port 91b to the outdoor heat exchanger ventilation path S2 is less likely to occur.
  • the through-hole 301 can be arrange
  • the air-conditioning ventilator 400 further includes a damper 401 provided in the through hole 301 of the external air intake duct D1.
  • the amount of room air sucked into the outdoor heat exchanger ventilation path S2 from the through hole 301 can be adjusted by the damper 401.
  • the external temperature sensor 203 is disposed around the opening at one end of the external air intake duct D1.
  • the operation of the control device 70 based on the detection results of the indoor temperature sensor 202 and the external temperature sensor 203 is the same as in the second embodiment.
  • Other effects are the same as those of the third embodiment.
  • the external air intake duct D1 is connected to the first outdoor heat exchanger inlet 92a and the exhaust duct D2 is connected to the outdoor heat exchanger exhaust 92b.
  • the external air intake duct D1 and the exhaust duct D2 may be omitted. Specific examples thereof will be described below.
  • the casing 90 is installed in a state of penetrating the building wall WL that separates the air-conditioned room RA and the external space RB.
  • the indoor heat exchanger ventilation path defining member 91 is disposed in the air-conditioned space RA, and the indoor heat exchanger air inlet 91a and the indoor heat exchanger exhaust 91b face the air-conditioned space RA. This is the same as the first embodiment.
  • the point that the ventilation path defining member 92 for the outdoor heat exchanger is arranged in the external space RB is different from the first embodiment.
  • the air-conditioning ventilator 500 includes an indoor air intake duct D3 in order to take room air into the outdoor heat exchanger ventilation path S2.
  • the opening at one end of the indoor air intake duct D3 faces the inside of the air-conditioned room RA.
  • the opening at the other end of the indoor air intake duct D3 is connected to the outdoor heat exchanger second intake port 92c. Ventilation of the air-conditioned room RA is realized by the indoor air intake duct D3 guiding the room air from the air-conditioned room RA to the outdoor heat exchanger ventilation path S2 across the wall WL.
  • the opening at one end of the indoor air intake duct D3 faces the interior of the air-conditioned room RA at a position farther from the indoor heat exchanger exhaust port 91b than the indoor heat exchanger intake port 91a.
  • a short circuit of room air from the indoor heat exchanger exhaust port 91b to the outdoor heat exchanger ventilation path S2 is suppressed.
  • Other effects are the same as those of the first embodiment.
  • the air-conditioning ventilator 600 further includes a damper 601 provided at an opening at one end of the indoor air intake duct D3.
  • a damper 601 provided at an opening at one end of the indoor air intake duct D3.
  • the external temperature sensor 203 is arranged around the first outdoor heat exchanger inlet 92 a on the outer surface of the outdoor heat exchanger ventilation path defining member 92.
  • the operation of the control device 70 based on the detection results of the indoor temperature sensor 202 and the external temperature sensor 203 is the same as in the second embodiment.
  • Other effects are the same as those of the fifth embodiment.
  • the indoor air intake duct D3 is disposed outside the casing 90.
  • the indoor air intake duct D3 is disposed outside the casing 90. You may arrange
  • indoor air is guided from the air-conditioned room RA to the outdoor heat exchanger ventilation path S2 via the second outdoor heat exchanger inlet 92c.
  • the indoor air intake duct D4 is arranged inside the housing 90.
  • the indoor air intake duct D4 passes through the portion facing the indoor heat exchanger ventilation path S1 and the machine housing portion S3 inside the housing 90, and from the position of the indoor heat exchanger inlet 91a, the second outdoor heat exchanger second. It extends over the position of the air inlet 92c.
  • the opening at one end of the indoor air intake duct D4 faces the inside of the air-conditioned room RA at the position of the indoor heat exchanger intake port 91a, and the opening at the other end of the indoor air intake duct D4 is the outdoor opening. It is connected to the second heat exchanger inlet 92c.
  • the indoor heat exchanger inlet 91a serves both as a part for taking in indoor air for air conditioning and as a part for taking in indoor air for ventilation. For this reason, aesthetics can be raised by simplifying the appearance of the portion of air-conditioning ventilator 700 exposed to air-conditioned room RA.
  • the outdoor heat exchanger 20 when ventilating the air-conditioned room RA, in order to prevent dust in the air-conditioned room RA from adhering to the inner surface of the outdoor heat exchanger ventilation path S2, the outdoor heat exchanger 20, and the outdoor blower 50. It is preferable to filter the room air to remove dust, and then take the room air into the outdoor heat exchanger ventilation path S2.
  • the filter installed in the indoor heat exchanger inlet 91a removes dust from the indoor air flowing into the indoor heat exchanger ventilation passage S1, and the outdoor heat exchanger ventilation. It can also serve to remove dust from room air flowing into the path S2. For this reason, there is an advantage that only one filter is required.
  • Embodiment 8 Means for adjusting the amount of external air sucked into the outdoor heat exchanger ventilation path S2 from the first outdoor heat exchanger inlet 92a may be added to the configuration of Embodiment 1-7. Specific examples thereof will be described below.
  • the air-conditioning ventilator 800 further includes a damper 801 provided at the first outdoor air exchanger 92a. With the damper 801, the amount of external air sucked into the outdoor heat exchanger ventilation path S2 from the external space RB can be adjusted.
  • the control device 70 When it is determined that there is a possibility that the outdoor heat exchanger 20 may be frosted based on the detection result of the external temperature sensor 203 when the air-conditioned room RA is being heated, the control device 70 has a damper 801. Control is performed to reduce the opening degree. Thereby, the ratio of indoor air is naturally raised among the indoor air and external air which flow into the ventilation path S2 for outdoor heat exchangers, and the adhesion of the frost to the outdoor heat exchanger 20 is suppressed.
  • the control device 70 also controls the air conditioner 80 to ventilate the air-conditioned room RA without air-conditioning the air-conditioned room RA.
  • the case where the air-conditioned room RA is a bathroom will be described as an example.
  • the control device 70 activates the outdoor blower 50 in response to the user's operation when the user leaves the air-conditioned room RA that is a bathroom.
  • the compressor 31 and the indoor blower 40 are stopped and the damper 801 is fully closed.
  • FIG. 1 illustrates the configuration in which the second heat intake port 92c for the outdoor heat exchanger is disposed upstream of the outdoor heat exchanger 20, the second heat intake port 92c for the outdoor heat exchanger is illustrated as an outdoor heat exchanger 20. It may be arranged further downstream. In that case, only the outside air of the outside air and the room air passes through the outdoor heat exchanger 20, but ventilation of the air-conditioned room RA is realized.
  • the housing 90 is arranged in the air-conditioned room RA, the indoor heat exchanger air intake 91a, the indoor heat exchanger exhaust 91b, and the outdoor heat exchanger second air intake 92c are Although the configuration exposed to the air conditioning room RA has been illustrated, the place where the housing 90 is disposed is not particularly limited.
  • the casing 90 is covered.
  • the indoor heat exchanger ventilation path defining member 91 and the outdoor heat exchanger ventilation path defining member 92 may be disposed separately from the air conditioning room RA.
  • FIG. 1 illustrates an axial blower as the indoor blower 40 and the outdoor blower 50, but the type of the blower is not limited thereto.
  • a centrifugal blower As the indoor blower 40 and the outdoor blower 50, a centrifugal blower, a mixed flow blower, or a cross flow blower may be used.
  • the types of the indoor blower 40 and the outdoor blower 50 may be different.
  • the indoor blower 40 may be disposed upstream of the indoor heat exchanger 10
  • the outdoor blower 50 may be disposed upstream of the outdoor heat exchanger 20.
  • the inflator 32 may be an electronic expansion valve.
  • FIG. 4 and 5 illustrate the configuration in which one through hole 301 is formed in the external air intake duct D1, but a plurality of through holes 301 may be formed in the external air intake duct D1.
  • the dampers 401 may be provided in all the through holes 301.
  • the control device 70 may control the plurality of dampers 401 to the same opening degree, or may vary the opening degree of each damper 401.
  • the partition member is a ceiling of the building. May be. That is, the housing 90 may be installed on the ceiling.
  • the indoor heat exchanger ventilation path demarcating member 91 is disposed in the air-conditioned space RA, and the outdoor heat
  • the exchanger ventilation path defining member 92 may be disposed in the external space RB.
  • FIG. 7 illustrates the configuration in which the damper 601 is provided in the opening facing the external space RA of the indoor air intake duct D3.
  • the damper 601 may be configured so that the interior of the indoor air intake duct D3 or the outdoor heat is provided. You may install in any location of the 2nd inlet 92c for exchangers.
  • FIG. 8 illustrates the configuration in which the indoor air intake duct D4 is opened at the position of the indoor heat exchanger intake port 91a.
  • the outdoor heat exchanger ventilation path S2 is used.
  • the indoor air intake duct D4 is connected to the outdoor heat exchanger ventilation. You may open in the upstream part of path S2.
  • the air-conditioning ventilation apparatus and air-conditioning ventilation method according to the present invention can be used for air-conditioning and ventilation of an air-conditioned room.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Air Conditioning Control Device (AREA)

Abstract

L'invention porte sur un élément (92) de délimitation d'un canal de ventilation pour échangeur de chaleur d'extérieur, ledit élément (92) servant à délimiter un canal de ventilation (S2) pour échangeur de chaleur d'extérieur dans lequel un échangeur de chaleur d'extérieur (20) est disposé, ledit élément comportant : un premier orifice d'admission (92a) pour échangeur de chaleur d'extérieur et un orifice d'échappement (92b) pour échangeur de chaleur d'extérieur, le premier orifice d'admission (92a) et l'orifice d'échappement (92b) étant en communication avec un espace extérieur (RB) ; et un second orifice d'admission (92c) pour échangeur de chaleur d'extérieur, le second orifice d'admission (92c) étant en communication avec une pièce à climatiser (RA). Une soufflante d'extérieur (50) permet d'aspirer l'air extérieur, c'est-à-dire l'air dans l'espace extérieur (RB), à travers le premier orifice d'admission (92a) pour échangeur de chaleur d'extérieur, et d'aspirer l'air intérieur dans la pièce à climatiser (RA) à travers le second orifice d'admission (92c) pour échangeur de chaleur d'extérieur. L'air extérieur et l'air intérieur aspirés traversent l'échangeur de chaleur d'extérieur (20), et un courant d'air, évacué vers l'espace extérieur (RB) à travers l'orifice d'échappement (92b) pour échangeur de chaleur d'extérieur, est formé dans le canal de ventilation (S2) pour échangeur de chaleur d'extérieur.
PCT/JP2019/013553 2018-04-02 2019-03-28 Dispositif et procédé de ventilation pour climatiseur WO2019194063A1 (fr)

Priority Applications (4)

Application Number Priority Date Filing Date Title
JP2020512197A JPWO2019194063A1 (ja) 2018-04-02 2019-03-28 空調換気装置及び空調換気方法
US16/970,797 US20210108805A1 (en) 2018-04-02 2019-03-28 Air conditioner ventilation device and air conditioner ventilation method
CN201980020937.6A CN111886452A (zh) 2018-04-02 2019-03-28 空调换气装置及空调换气方法
CA3092915A CA3092915A1 (fr) 2018-04-02 2019-03-28 Dispositif et procede de ventilation pour climatiseur

Applications Claiming Priority (2)

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JP2018070546 2018-04-02
JP2018-070546 2018-04-02

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JP (1) JPWO2019194063A1 (fr)
CN (1) CN111886452A (fr)
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WO (1) WO2019194063A1 (fr)

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US11655996B2 (en) * 2021-06-02 2023-05-23 Lubnevskiy Konstantin Kazimirovich Air to air heat pump with heat recovery function and exhaust air humidity for heating ventilation and air conditioning systems

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US20210108805A1 (en) 2021-04-15
CN111886452A (zh) 2020-11-03
JPWO2019194063A1 (ja) 2020-10-22

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